<template>
  <div>
    <!-- 评论列表 -->
    <div
      class="cmt-list"
      :class="{
        'art-cmt-container-1': isShowCmtInput,
        'art-cmt-container-2': !isShowCmtInput
      }"
    >
      <!-- 评论的 Item 项 -->
      <van-list
        v-model="loading"
        :finished="finished"
        finished-text="没有更多评论了！"
        @load="onLoad"
        :immediate-check="false"
      >
        <div class="cmt-item" v-for="item in commlist" :key="item.com_id">
          <!-- 头部区域 -->
          <div class="cmt-header">
            <!-- 头部左侧 -->
            <div class="cmt-header-left">
              <img :src="item.aut_photo" alt="" class="avatar" />
              <span class="uname">{{ item.aut_name }}</span>
            </div>
            <!-- 头部右侧 -->
            <div class="cmt-header-right">
              <van-icon
                name="like"
                size="16"
                color="red"
                v-if="item.is_liking"
                @click="MylikeFn(1, item)"
              />
              <van-icon
                name="like-o"
                size="16"
                color="gray"
                v-else
                @click="MylikeFn(0, item)"
              />
            </div>
          </div>
          <!-- 主体区域 -->
          <div class="cmt-body">
            {{ item.content }}
          </div>
          <!-- 尾部区域 -->
          <div class="cmt-footer">{{ from(item.pubdate) }}</div>
        </div>
      </van-list>
    </div>

    <div>
      <!-- 底部添加评论区域 - 1 -->
      <div class="add-cmt-box van-hairline--top" v-if="isShowCmtInput === true">
        <van-icon name="arrow-left" size="0.48rem" @click="$router.back()" />
        <div class="ipt-cmt-div" @click="commentFn">发表评论</div>
        <div class="icon-box">
          <van-badge :content="totCount === 0 ? '' : totCount" max="99">
            <van-icon name="comment-o" size="0.53333334rem" @click="scrollFn" />
          </van-badge>
          <div>
            <van-icon
              name="star-o"
              size="0.53333334rem"
              @click="collectFn(1)"
              v-if="!isShwoComm"
            />
            <van-icon
              name="star-o"
              color="red"
              size="0.53333334rem"
              @click="collectFn(0)"
              v-else
            />
          </div>

          <van-icon name="share-o" size="0.53333334rem" @click="shareFn" />
        </div>
      </div>

      <!-- 底部添加评论区域 - 2 -->
      <div class="cmt-box van-hairline--top" v-else>
        <textarea
          placeholder="友善评论、理性发言、阳光心灵"
          v-fofo
          @blur="blurFn"
          v-model.trim="text"
        ></textarea>
        <van-button
          type="default"
          :disabled="text.length === 0"
          @click="releaseFn"
          >发布</van-button
        >
      </div>
    </div>
        <van-share-sheet
      v-model="showShare"
      title="立即分享给好友"
      :options="options"
      @select="onSelect"
      get-container="body"
    />
  </div>
</template>

<script>
import { timeAgo } from '@/utils/date.js'
import {
  getACommentAPI,
  MyLikeAPI,
  MyCancelAPI,
  addCommentAPI,
  articleCollectionAPI,
  cancelCollectionAPI
} from '@/api/index.js'
export default {
  name: 'lists',
  props: ['coll'],
  data() {
    return {
      commlist: [],
      isShowCmtInput: true,
      totCount: 0,
      text: '',
      loading: false,
      finished: false,
      lastId: null,
      isShwo: null,
      showShare: false,
      options: [
        { name: '微信', icon: 'wechat' },
        { name: '微博', icon: 'weibo' },
        { name: '复制链接', icon: 'link' },
        { name: '分享海报', icon: 'poster' },
        { name: '二维码', icon: 'qrcode' }
      ]
    }
  },
  computed: {
    isShwoComm() {
      if (this.isShwo === null) {
        return this.coll
      } else {
        return this.isShwo
      }
    }
  },
  methods: {
    onSelect(option) {
      
    },
    shareFn() {
      this.showShare = true
    },
    async collectFn(e) {
      if (e === 1) {
        console.log(1)
        this.isShwo = true
        await articleCollectionAPI(this.$route.query.art_id)
      } else {
        console.log(2)
        this.isShwo = false
        await cancelCollectionAPI(this.$route.query.art_id)
      }
    },
    async onLoad() {
      if (this.commlist.length > 0 && this.lastId) {
        const { data: ress } = await getACommentAPI({
          id: this.$route.query.art_id,
          offset: this.lastId
        })
        this.lastId = ress.data.last_id
        this.commlist = [...this.commlist, ...ress.data.results]
        if (ress.data.last_id === null) {
          this.finished = true
        }
        this.loading = false
      } else {
        this.loading = false
      }
    },
    async releaseFn() {
      const { data: res } = await addCommentAPI({
        id: this.$route.query.art_id,
        contentText: this.text
      })
      console.log(res.data)
      this.commlist.unshift(res.data.new_obj)
      this.text = ''
      this.totCount += 1
      this.scrollFn()
    },
    scrollFn() {
      document.querySelector('.like-box').scrollIntoView({
        behavior: 'smooth'
      })
    },
    blurFn() {
      setTimeout(() => {
        this.isShowCmtInput = true
      }, 0)
    },
    commentFn() {
      this.isShowCmtInput = false
    },
    async MylikeFn(e, item) {
      if (e === 1) {
        await MyCancelAPI(item.com_id)
        item.is_liking = false
      } else {
        item.is_liking = true
        await MyLikeAPI(item.com_id)
      }
    },
    from: timeAgo
  },
  async created() {
    const { data: res } = await getACommentAPI({
      id: this.$route.query.art_id
    })
    // console.log(res);
    this.totCount = res.data.total_count
    this.list = res.data.results.length
    this.commlist = res.data.results
    this.lastId = res.data.last_id
    if (res.data.results.length === 0) {
      this.finished = true
    }
  }
}
</script>

<style scoped lang="less">
.cmt-list {
  padding: 10px;
  .cmt-item {
    padding: 15px 0;
    + .cmt-item {
      border-top: 1px solid #f8f8f8;
    }
    .cmt-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      .cmt-header-left {
        display: flex;
        align-items: center;
        .avatar {
          width: 40px;
          height: 40px;
          background-color: #f8f8f8;
          border-radius: 50%;
          margin-right: 15px;
        }
        .uname {
          font-size: 12px;
        }
      }
    }
    .cmt-body {
      font-size: 14px;
      line-height: 28px;
      text-indent: 2em;
      margin-top: 6px;
      word-break: break-all;
    }
    .cmt-footer {
      font-size: 12px;
      color: gray;
      margin-top: 10px;
    }
  }
}
/*美化 - 文章详情 - 底部的评论页面 */
// 外层容器
.art-cmt-container-1 {
  padding-bottom: 46px;
}
.art-cmt-container-2 {
  padding-bottom: 80px;
}

// 发布评论的盒子 - 1
.add-cmt-box {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 46px;
  line-height: 46px;
  padding-left: 10px;
  .ipt-cmt-div {
    flex: 1;
    border: 1px solid #efefef;
    border-radius: 15px;
    height: 30px;
    font-size: 12px;
    line-height: 30px;
    padding-left: 15px;
    margin-left: 10px;
    background-color: #f8f8f8;
  }
  .icon-box {
    width: 40%;
    display: flex;
    justify-content: space-evenly;
    line-height: 0;
  }
}

.child {
  width: 20px;
  height: 20px;
  background: #f2f3f5;
}

// 发布评论的盒子 - 2
.cmt-box {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding-left: 10px;
  box-sizing: border-box;
  background-color: white;
  textarea {
    flex: 1;
    height: 66%;
    border: 1px solid #efefef;
    background-color: #f8f8f8;
    resize: none;
    border-radius: 6px;
    padding: 5px;
  }
  .van-button {
    height: 100%;
    border: none;
  }
}
</style>
